Enantioenriched helicenes and helicenoids containing main-group elements (B, Si, N, P)

K Dhbaibi, L Favereau, J Crassous - Chemical reviews, 2019 - ACS Publications
In this review, we discuss the rich chemistry of helicenes and helicenoids containing main-
group elements. Enantioenriched helicenic derivatives containing main-group elements B …

Recent advances in functionalizations of helicene backbone

M Jakubec, J Storch - The Journal of Organic Chemistry, 2020 - ACS Publications
Helicenes, chiral members of the family of polyaromatic hydrocarbons, have been
increasingly used in a variety of applications in recent years. Despite their intriguing …

Synthesis and properties of [7] helicene-like compounds fused with a fluorene unit

H Oyama, M Akiyama, K Nakano, M Naito… - Organic …, 2016 - ACS Publications
[7] Helicene-like compounds with a fluorene unit were successfully synthesized using a
platinum-catalyzed double cyclization reaction. Crystal structures and photophysical …

An ultimate stereocontrol in asymmetric synthesis of optically pure fully aromatic helicenes

M Šámal, S Chercheja, J Rybacek… - Journal of the …, 2015 - ACS Publications
The role of the helicity of small molecules in enantioselective catalysis, molecular
recognition, self-assembly, material science, biology, and nanoscience is much less …

Enantiopure versus racemic naphthalimide end‐capped helicenic non‐fullerene electron acceptors: impact on organic photovoltaics performance

P Josse, L Favereau, C Shen… - … A European Journal, 2017 - Wiley Online Library
Impact of the enantiopurity on organic photovoltaics (OPV) performance was investigated
through the synthesis of racemic and enantiomerically pure naphthalimide end‐capped …

Oxahelicene NHC ligands in the asymmetric synthesis of nonracemic helicenes

IG Sánchez, M Šámal, J Nejedlý, M Karras… - Chemical …, 2017 - pubs.rsc.org
A straightforward approach to enantiopure 2H-pyran-modified amino [5] helicenes and
amino [6] helicenes was developed. They were converted to 1, 3-disubstituted imidazolium …

Synthesis of long oxahelicenes by polycyclization in a flow reactor

J Nejedlý, M Šámal, J Rybáček… - Angewandte …, 2017 - Wiley Online Library
A series of oxahelicenes composed of ortho/meta‐annulated benzene/pyridine and 2H‐
pyran rings were synthesized on the basis of the cobalt (I)‐mediated (or rhodium (I)‐or nickel …

Helicene-SPP-based chiral plasmonic hybrid structure: toward direct enantiomers SERS discrimination

Y Kalachyova, O Guselnikova… - … applied materials & …, 2018 - ACS Publications
Achieving chiral plasmon response based on the combination of achiral plasmonic
nanostructures with highly chiral surrounding medium represents an attractive way for …

Localized antiaromaticity hotspot drives reductive dehydrogenative cyclizations in bis-and mono-helicenes

Z Zhou, DT Egger, C Hu, M Pennachio… - Journal of the …, 2022 - ACS Publications
We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic
anionic graphene subunits from mono-and bis-helicenes with an embedded five-membered …

Enantioselective Au‐Catalyzed Synthesis of Thia [5]‐and Thia [6] helicenes and Their Transformation into Bowl‐shaped Pleiadenes

W Fu, V Pelliccioli, M von Geyso, P Redero… - Advanced …, 2023 - Wiley Online Library
A series of helically shaped benzo [b] chryseno [4, 3‐d] thiophenes, naphtho [1, 2‐b]
phenanthro [4, 3‐d] thiophenes, and chryseno [3, 4‐b] naphtho [1, 2‐d] thiophenes is …